3M Adhesive 4 Packs Thin Metal Plate For Magnetic Car Phone Holder (2 Round and 2 Rectangle)

Used these previously. Purchased them again because they work well. They look exactly as they appear in the images and as described. They are lightweight and strong. Strong magnet ability that holds my mobile phone on a window arm in my car.

Exactly what I had hoped it would be. Slim on appliance. Easy to apply and great adhesive. Value for money on the selection received also. Recommended.

🧪 First ImpressionsUsed these across two phones and a satnav setup—wanted something low-profile that sticks clean and holds firm. Straight out the pack, they’re thin, lightweight, and come with proper 3M adhesive backing. No peeling, no residue, and no bulk under a case.Stuck one rectangle plate inside a silicone case and one round plate directly on a backup phone—both held solid on a magnetic mount, even over bumps and motorway runs. No wobble, no drop. The magnets grip well, and the plates don’t interfere with wireless charging if placed low or off-centre.🧰 Real-World Use✅ Used in van and car—held firm on dash mounts and vent clips.✅ Plates are thin enough to sit under most cases without bulging.✅ Adhesive sticks clean—no lift after weeks of use.✅ Ideal for phones, GPS units, or small tools with magnetic mounts.Also tested swapping cases—plate stayed put, no mess. Good for anyone who wants a clean, reliable mount setup without faff or bulky brackets.👍 Pros✅ Strong 3M adhesive—sticks clean, no residue✅ Slim profile—fits under most cases✅ Two shapes—round and rectangle for flexible placement✅ Works with most magnetic mounts✅ 4-pack—spares for multiple devices or setups👎 Cons❌ Not reusable—once stuck, it’s fixed❌ Can interfere with wireless charging if placed dead centre❌ No protective film included—watch for scratches on bare phones❌ Not magnetic itself—relies on mount magnet🧭 Final VerdictIf you want slim, strong metal plates for magnetic phone mounts, the YIANERM 4-pack earns its spot. I’ve tested them across van runs, daily drives, and gear setups—no drama, just clean mounting and proper hold. Good stash-ready kit for anyone who wants their phone dialled without the faff.

Very pleased with this product. The adhesive hold is very strong and secure, and it has been working well for a long time without any issues. It does exactly what it should and feels reliable.

Perfect did the job great price

These stick well and the round ones are working well!

Works but you cannot put it inside the case as advertised, the magnet is too weak

Good item, does the job and fair price.